For centuries, humans have tried and failed to achieve physical immortality. Rumors have abounded throughout history, but did anyone actually achieve eternal life? Tune in to learn more about modern medicine and the bizarre story of Henrietta Lacks.

Soviet astronaut Yuri Gagarin was the first human being in space -- at least, officially. Could the Soviet government have destroyed evidence of other, less successful space missions? Tune in to learn more about lost cosmonaut conspiracy theories.

Most people have heard the most popular lunar conspiracy theory -- that no one actually landed on the moon -- but what about the rest? Tune in to learn more about other moon-based conspiracy theories, including lunar structures and UFO sightings.

Stories of alien abductions are found across the world. Yet according to mainstream science, there's no evidence to prove these outlandish claims. Tune in to learn more about the controversy surrounding stories of alien abductions.

Everyone's heard of UFOs, but what about unidentified submerged objects? This episode takes a look at the bizarre Shag Harbour event, in which a mysterious object crashed from the sky -- and allegedly escaped weeks later. Tune in to learn more.

For ufologists and skeptics alike, Project Blue Book had the potential to be a gold mine. Learn how the US Air Force launched an official UFO investigation that spanned decades -- and why some people suspect a conspiracy -- in this episode.

What is a "chemtrail," exactly? Experts agree that jet contrails are harmless, yet thousands of people think the vapors are evidence for anything from massive drug dosing to weather wars. Why? Learn more in this episode.

Theoretically, weather modification could change the world - but how? Has anyone ever tried to turn the world's weather into a weapon? Join Ben and Matt to learn more in the conclusion to this week's series.

Wind energy has often been touted as a clean and potentially infinite source of power. However, it isn't without critics. Some concerns seem reasonable, while others range into territory that the mainstream might call outrageous.

In 1947 a mysterious object crashed to Earth at the Foster Ranch outside of Roswell, New Mexico - and more than 50 years later, people still don't agree on what happened. Check out these first two episodes of Ben and Matt's Roswell series.

In the third installment of this continuing series on the human brain, we explore how electrical and magnetic stimulation may enhance performance in everything from memory retention to linguistic aptitude.

By any measure Mark Zuckerberg's social media site is an enormous success. But who actually owns Facebook, and why do some people believe it's owned by the U.S. government? Listen in to learn more about Facebook conspiracy theories.

Edward Snowden isn't the first former employee to raise concerns about the NSA's surveillance programs. Tune in to learn more about past whistleblowers, ongoing concerns, and why even NSA employees may be in the dark about the agency's actions.

In 2013 news of the NSA's surveillance program was leaked by Edward Snowden. As the public, pundits and the government scrambled to respond, questions arose: How much of this is true? What else does the NSA not want you to know?

Sure, it sounds like the hook in a Beach Boys song, but could electromagnetic vibrations actually affect the way to you behave and perceive the world? Could infrasound cause a person to believe they have seen a ghost? Tune in to learn more.